Prosecutors believe Padilla killed 65-year-old Jose Arias, an "unsuspecting and sleeping victim" who was seated inside the Burger King during the attack.

"The defendant plunged the knife into the victim's back and neck area repeatedly, eventually causing his death," Senior Deputy Prosecutor Stephen A. Herschkowitz wrote in the bail request to hold Padilla for $1 million.

It's unknown what prompted the seemingly sudden attack on a man with whom he had no obvious relationship, according to the latest information available on the case.

Police arrived to the Burger King on Northeast 24th Street to find Arias staggering outside, struggling from his injuries, according to probable cause reports.

Padilla had fled the restaurant and police tracked him down 1 1/2 miles away. They also found a 10-inch knife believed to be the murder weapon ditched at an office complex.

Padilla has a handful of fourth-degree assault convictions in his criminal history, as well as an assault against a police officer conviction from 2013.